If you are still running the Windows 7 Beta and haven’t bothered to update to the release candidate, you’re about to hit the bi-hourly shutdowns.
Starting July 1st, Windows 7 Beta users will start getting bi-hourly shutdowns, meaning that your computer will automatically be shut down every 2 hours.
If you want to avoid the Windows 7 Beta bi-hourly shutdowns, you’ll need to upgrade to the Release Candidate for free. You can download it from here for free until August 15th so make sure you upgrade if you want to continue using Windows 7.